公开(公告)号：US20210108603A1

公开(公告)日：2021-04-15

申请号：US16665579

申请日：2019-10-28

Applicant: DENSO CORPORATION

Inventor： Niro TAKAKI ,  Fumiaki ARIKAWA ,  Tomoki FUJINO

IPC: F02M61/10 ,  F02M51/06

Abstract: A fuel injection valve includes a fixed core and a movable core. The fixed core includes a fixed-side high rigidity portion having high rigidity and a fixed-side low rigidity portion having rigidity lower than that of the fixed-side high rigidity portion. The movable core includes a movable-side high rigidity portion having high rigidity and a movable-side low rigidity portion having rigidity lower than that of the movable-side high rigidity portion. Current fed to a coil generates a magnetic attractive force to cause the movable core to move toward the fixed core together with a needle and to cause the movable-side high rigidity portion to abut on the fixed-side high rigidity portion.